Ever ran out of battery mid way though the day? Ever wish that you can extend your battery life span? Bet you have. How to do it? Buy more battery, or Buy a Higher capacity battery, Switch on your device only when you use it? Not very practical is it?
Well a friend of mind have found a way, He wrap his batteries, in aluminum foil, he has done it with his remote batteries, his clock batteries, and now his hand phone batteries. His Nokia N70 batteries is around 2 years old, and can only last him for around 18 hours a day after a full charge, with the aluminum foil wrap around it, It lasted him 48 hours that a big improvement.
A Hand Phone Battery wrapped in Aluminum foil to boost it life span.